Piston packing



" Packin'gs, of which the following is tov Patented July 28, 192%.v i

'DANIEL n Hoeven-son", es esaminati; 'souris essere.

' IPSTON Application le Eleeember T0 all "whom t may concern: v

Be it known that I, DANIEL E, Honvnnson, a citizen of the United States, and a resident of Aberdeen,` in the county of Brown and State'of Soutlrlakota, have invented certain new and useful Improvements .in Piston a speciication. y

This invention relatesA to e, piston packing for engines or other machines, such as pumps or the like.

The object of the invention is 'to provide a piston packing of this character which girevents en' excess or undesirable quantity of oil Afinding itswey into the combustion' chamber of the engine or Working space of the puinpjor theiike and `which in general provides rfor elicient and effective packing.

A further object is to provide e piston pecking which is especially although not necessarily designed and adapted for use as e replacement packing with Worn grooves of a piston. or vwith a Worn cylinder.

Another object is to provide a piston packing having' the 'foregoing enumerated advantages-and capacities and which is also of simple and durable construction, reliable and effective in operation, and easy and comparatively inexpensive to manufacture from materials and by means et facilities ordi-- narily available.

Other objects and advantages of the vention reside in certain novel features of the construction, combination and arrange;N

ment ot partsl Which/Will be hereinafter more full y describedfaiid particularly pointed out` in the appended claim, reference being; had to. the accompanying` drawings forming a part of this specification, ond in which:

Figure l, is a View inelevation,,showing a piston packing embodying' the present in vention; and v v y l Figure?, zi tragnientz-iry View in diauietricol vertical section, showing' the packing associated with a piston and cylinder. I 4ltcferring to the drawings, wherein for ille sake of illustration, is shown. the preferred embodiment of the invention, the numeral. 5 designates the cylinder of en engine, such as rin-internal combustion engine or steam engine, or--of a. pump or other machine. A piston 6 is mounted in the cylinder and isprovidod in its ont-er periphery withA encor/more annular grooves 'l'. In each groove ,7 a' piston packingembodying the present invention is arranged.

action to resiliently hold the recante.' ai, ieee; semaine. essere respect to a plane perpendicular to the longitudinal ages ofthe cylinder 5 and piston 6.v

Adjacent the meeting 'faces of the sections. 8 and 9, the section Q has its outer peripheral surface out sway orbeveled, as at f l. ,A eonsiderable portion and preferably more than Vhalf of the peripheral surface of thering 9 is scout away and there is in this Inanner deined an oli receiving pocket'12 and e downwardly inclined scraping surface 13 which terminates at the periphery of the ring in a scraping edge. In this manner there is provided on the ring an outer peripherel packing 'surface 14C' of I relatively large area andv on the ring 9 an outer peripheral surface 15 of relatively small area and the area of the inclined meeting surfaces l0 is reduced.l

In the embodirnent shown in Figure 2 the sections 8 and 9 are urged toward and. into packing enifagement with Vvthecylinder,by their inherent resiliency but obviously a. fiat band expanding spring or other suitable spring ineens Arnaybe employed between the eral surfaces of the sections 8 and 9` same pilrpof's'e.` if t ln Figure 2, the peeking isillustrated in conjunction w'tlyaverticaliy disposed cylinder' and piston and the meeting faces of the sections 8 and 9 are` inclined downwardly etvl an acute'. angle. Ubvrously in a horizontal engine or pump the inclination of the meeting fac-es would. be outwardly and would be on equivalent of the structure illustrated. By cutting away or bevelling the lower ring section. 9 so as to lessen the area of the meeting surfaces the frictional resistance to the alternate expansion and compression of the ring sections in. following a worn or tapered cylinder Wall is greatly reduced und this action is enhanced. The formation of the ring sections of equal cross sectional aree and the inclinationfofthe meeting faces of the ring sections' gives the proper Wedge packing surfases i. and of .lle icing m peeking engagemel' m Wall anf die end Smeees e.

dans in peeking engagement Wn inline "wells of the y gre eve Y' enel else immer-.ees the wem?- mg que excessive eyllnepwall pressure. H enyoil udeiiis wey in beween elle pecking surface elam: peelamg "m7: use. m lgxeemng e 1eme 'welch giseeve m e eylmdef en com- 'prisng ring edejpted bo-be fitted in seid grqove made up of a lian' of transversely rigid and. cl'reumferentla-l y reslllent'seetmns tiens the ring'neving their engagmg faces inclined; with respect to a plane perpendicw lm? lic! the longitudinal axis of the piston anal, eylindemone 'of the sections of the ring being cuil away on an incline mound its outer perphely and adjacent the engaging feces Q the sections vto rovile an oil reeevin' packet and an i distributing sur- "ace, llee other section presenting an undercui; scraping edge around the `ocket and edeped to seape the oil from t e cylindex' and deflect it into the pocket.

' DANIEL E. HOINERSOLL` l20 ectly engaged with each ther, the sec- 

